core, core/state, trie: Hardfork EIP155, EIP161, EIP170

This commit implements EIP158 part 1, 2, 3 & 4

1. If an account is empty it's no longer written to the trie. An empty
  account is defined as (balance=0, nonce=0, storage=0, code=0).
2. Delete an empty account if it's touched
3. An empty account is redefined as either non-existent or empty.
4. Zero value calls and zero value suicides no longer consume the 25k
  reation costs.

params: moved core/config to params

Signed-off-by: Jeffrey Wilcke <jeffrey@ethereum.org>

console/console_test.go

@@ -30,10 +30,10 @@ import (
 
 	"github.com/ethereum/go-ethereum/accounts"
 	"github.com/ethereum/go-ethereum/common"
-	"github.com/ethereum/go-ethereum/core"
 	"github.com/ethereum/go-ethereum/eth"
 	"github.com/ethereum/go-ethereum/internal/jsre"
 	"github.com/ethereum/go-ethereum/node"
+	"github.com/ethereum/go-ethereum/params"
 )
 
 const (
@@ -100,10 +100,10 @@ func newTester(t *testing.T, confOverride func(*eth.Config)) *tester {
 		t.Fatalf("failed to create node: %v", err)
 	}
 	ethConf := &eth.Config{
-		ChainConfig:    &core.ChainConfig{HomesteadBlock: new(big.Int)},
+		ChainConfig:    &params.ChainConfig{ChainId: new(big.Int), HomesteadBlock: new(big.Int)},
 		Etherbase:      common.HexToAddress(testAddress),
-		AccountManager: accman,
 		PowTest:        true,
+		AccountManager: accman,
 	}
 	if confOverride != nil {
 		confOverride(ethConf)